Cloud Computing Platform has various databases that are supported.The open source databases that are developed to support it is as follows:1. MongoDB: is an open source database system which is schema free and document oriented database. It is written in C++ and provides tables and high storage space.2. CouchDB: is an open source database system based on Apache server and used to store the data efficiently3. LucidDB: is the database made in Java/C++ for data warehousing. It provides features and functionalities to maintain data warehouse.